The ph of two lakes is measured. Lake a has a ph of 8.0; lake b has a ph of 6.0. Which of thefollowing statements is correct about these lakes?

What are two chemical characteristics of oxygen

What is hydrocarbon?

Which can occur in the rock cycle? a. Sedimentary rock is heated and a squeezed to from metamorphic rock. b. igneous rock is eroded to from metamorphic rock. c. metamorphic rock melts to from sedimentary rock. d. none ofthe above.

What kind of wavelength do television signals have? a. Short c. Long b. Intermediate d. Very rapid

11. What is the shape of the s orbital?

A piece of glass with a mass of 32.50 g specific heat of 0.840 J/g*°C and an initial temperature of 115 °C was dropped into a calorimeter containing 57 g of water (specific heat 4.184 J/g*°C).

Which of the following is the most likely description of the product or products of a double-displacement reaction? A) one new compound B) two new compounds C) oxygen and energy D) one new compound and an element

A balloon is filled with 12L of air at a pressure of 2 atm. What is the volume of ballon if the pressure is changed to 3 atm?

What ionic bond occurs between what particles? A. Two Negative Ions B. A positive and negative ion C. Two positive ions D. Two neutral atoms

Which of the following are good traits of a hypothesis? it will be able to be tested it can predict an outcome it will explain the observations all of these